/
MediaExtractorTest.kt
244 lines (187 loc) · 6.44 KB
/
MediaExtractorTest.kt
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package com.example.mediaextractor_mediamuxer_remux_example
import android.media.MediaExtractor
import android.media.MediaFormat
import android.util.Log
import androidx.test.ext.junit.runners.AndroidJUnit4
import androidx.test.platform.app.InstrumentationRegistry
import org.junit.After
import org.junit.runner.RunWith
import org.junit.Test
import org.junit.Assert.*
import org.junit.Before
import java.nio.ByteBuffer
@RunWith(AndroidJUnit4::class)
class MediaExtractorTest {
private val e = MediaExtractor()
private val testFile =
"/sdcard/Android/data/com.example.mediaextractor_mediamuxer_remux_example/cache/testfile.mp4"
@After
fun teardown() {
e.release()
}
@Test
fun canCreateAndRelease() {
val extractor = MediaExtractor()
extractor.release()
}
@Test
fun trackCountIsZeroIfNeverSetSource() {
val trackCount = e.trackCount
assertEquals(0, trackCount)
}
@Test
fun setDataSourceWithStringPath() {
val testFile =
"/sdcard/Android/data/com.example.mediaextractor_mediamuxer_remux_example/cache/testfile.mp4"
e.setDataSource(testFile)
}
@Test
fun throwsIfSetDataSourceWithInvalidPath() {
val invalidPath =
"/sdcard/Android/data/com.example.mediaextractor_mediamuxer_remux_example/cache/invalid.mp4"
assertThrows(Exception::class.java) {
e.setDataSource(invalidPath)
}
}
@Test
fun canGetSourceTrackCount() {
e.setDataSource(testFile)
val trackCount = e.trackCount
assertEquals(2, trackCount)
}
@Test
fun canGetTrackFormatByIndex() {
e.setDataSource(testFile)
for (i in 0 until e.trackCount) {
val trackFormat = e.getTrackFormat(i)
assertNotNull(trackFormat)
Log.i("MediaExtractorTest", "Track format for track $i: $trackFormat")
}
}
@Test
fun canGetMimeFromTrackFormat() {
e.setDataSource(testFile)
val videoTrackFormat = e.getTrackFormat(0)
val audioTrackFormat = e.getTrackFormat(1)
val videoMime = videoTrackFormat.getString(MediaFormat.KEY_MIME)
val audioMimeType = audioTrackFormat.getString(MediaFormat.KEY_MIME)
assertTrue(videoMime!!.startsWith("video/"))
assertTrue(audioMimeType!!.startsWith("audio/"))
}
@Test
fun canGetMaxInputSizeFromTrackFormat() {
e.setDataSource(testFile)
val videoTrackFormat = e.getTrackFormat(0)
val audioTrackFormat = e.getTrackFormat(1)
val videoMaxInputSize = videoTrackFormat.getInteger(MediaFormat.KEY_MAX_INPUT_SIZE)
val audioMaxInputSize = audioTrackFormat.getInteger(MediaFormat.KEY_MAX_INPUT_SIZE)
assertTrue(videoMaxInputSize > 0)
assertTrue(audioMaxInputSize > 0)
}
@Test
fun throwsIllegalArgumentExceptionIfGetTrackFormatWithInvalidIndex() {
e.setDataSource(testFile)
assertThrows(IllegalArgumentException::class.java) {
e.getTrackFormat(10)
}
}
@Test
fun readFailedIfNeverSetDataSource() {
val buffer = ByteBuffer.allocate(1024)
val sampleSize = e.readSampleData(buffer, 0)
assertEquals(-1, sampleSize)
}
@Test
fun readFailedIfNeverSelectTrack() {
e.setDataSource(testFile)
val buffer = ByteBuffer.allocate(1024)
val sampleSize = e.readSampleData(buffer, 0)
assertEquals(-1, sampleSize)
}
@Test
fun canSelectAndUnselectTrack() {
e.setDataSource(testFile)
e.selectTrack(0)
e.unselectTrack(0)
}
@Test
fun selectFailedIfInvalidTrackIndex() {
e.setDataSource(testFile)
assertThrows(IllegalArgumentException::class.java) {
e.selectTrack(10)
}
}
@Test
fun unselectFailedIfInvalidTrackIndex() {
e.setDataSource(testFile)
assertThrows(IllegalArgumentException::class.java) {
e.unselectTrack(10)
}
}
@Test
fun canReadSamples() {
e.setDataSource(testFile)
val trackIndex = 0
val format = e.getTrackFormat(trackIndex)
val maxInputSize = format.getInteger(MediaFormat.KEY_MAX_INPUT_SIZE)
val buffer = ByteBuffer.allocate(maxInputSize)
e.selectTrack(trackIndex)
val sampleSize = e.readSampleData(buffer, 0)
assertTrue(sampleSize > 0)
}
@Test
fun readSampleFailedIfBufferTooSmall() {
e.setDataSource(testFile)
val trackIndex = 0
val buffer = ByteBuffer.allocate(1)
e.selectTrack(trackIndex)
assertThrows(IllegalArgumentException::class.java) {
e.readSampleData(buffer, 0)
}
}
@Test
fun canGetSampleInfoAfterRead(){
e.setDataSource(testFile)
val trackIndex = 0
val format = e.getTrackFormat(trackIndex)
val maxInputSize = format.getInteger(MediaFormat.KEY_MAX_INPUT_SIZE)
val buffer = ByteBuffer.allocate(maxInputSize)
e.selectTrack(trackIndex)
e.readSampleData(buffer, 0)
assertTrue(e.sampleTime >= 0)
assertEquals(e.sampleTrackIndex, trackIndex)
}
@Test
fun readSameSampleIfNeverAdvance() {
e.setDataSource(testFile)
val trackIndex = 0
val format = e.getTrackFormat(trackIndex)
val maxInputSize = format.getInteger(MediaFormat.KEY_MAX_INPUT_SIZE)
val buffer = ByteBuffer.allocate(maxInputSize)
e.selectTrack(trackIndex)
val sampleSize = e.readSampleData(buffer, 0)
val sampleTime = e.sampleTime
val sampleFlags = e.sampleFlags
val sampleSize2 = e.readSampleData(buffer, 0)
val sampleTime2 = e.sampleTime
val sampleFlags2 = e.sampleFlags
assertEquals(sampleSize, sampleSize2)
assertEquals(sampleTime, sampleTime2)
assertEquals(sampleFlags, sampleFlags2)
}
@Test
fun readNextSampleAfterAdvance(){
e.setDataSource(testFile)
val trackIndex = 0
val format = e.getTrackFormat(trackIndex)
val maxInputSize = format.getInteger(MediaFormat.KEY_MAX_INPUT_SIZE)
val buffer = ByteBuffer.allocate(maxInputSize)
e.selectTrack(trackIndex)
val sampleSize = e.readSampleData(buffer, 0)
val sampleTime = e.sampleTime
e.advance()
val sampleSize2 = e.readSampleData(buffer, 0)
val sampleTime2 = e.sampleTime
assertTrue(sampleTime2 > sampleTime)
}
}